CERTIFICATE OF MERGER

                                       OF

                        DYCOM ACQUISITION CORPORATION II

                                  WITH AND INTO

                                 CABLE COM, INC.

                  The undersigned corporation, organized and existing under and
by virtue of the General Corporation Law of the State of Delaware, DOES HEREBY
CERTIFY THAT:

                  FIRST: The name and state of incorporation of each of the
constituent corporations to the merger (the "Constituent Corporations") are as
follows:


                     Name                            State of Incorporation
                     ----                            ----------------------

         Dycom Acquisition Corporation II                     Delaware
         Cable Com, Inc.                                      Delaware

                  SECOND: An Agreement and Plan of Merger dated February 23,
1998 (the "Merger Agreement"), between Dycom Industries, Inc. a Florida
corporation, Dycom Acquisition Corporation II, a Delaware corporation, Cable
Com, Inc., a Delaware corporation and the stockholders listed on the signature
pages attached thereto, has been approved, adopted, certified, executed and
acknowledged by each of the Constituent Corporations in accordance with the
requirements of Section 251 of the General Corporation Law of the State of
Delaware.
                 
                  THIRD: Cable Com, Inc. shall be the surviving corporation of
the merger (the "Surviving Corporation").







                                        2

                  FOURTH: The Restated Certificate of Incorporation of the
Surviving Corporation is hereby amended and shall be the Certificate of
Incorporation attached hereto as Exhibit A.

                  FIFTH: The executed Merger Agreement is on file at an office
of the Surviving Corporation located at c/o Dycom Industries, Inc., First Union
Center, Suite 600, 4440 PGA Boulevard, Palm Beach Gardens, FL 33410-6542.

                  SIXTH: A copy of the Merger Agreement will be furnished by the
Surviving Corporation, upon request and without cost, to any stockholder of
either Constituent Corporation.




                                        3

                  IN WITNESS WHEREOF, Cable Com, Inc. has caused this
Certificate of Merger to be executed on this 6th day of April, 1998.

                                          CABLE COM, INC.

                                          By: /s/ John J. Ekstrom
                                             ---------------------------
                                          Name: John J. Ekstrom
                                          Title: Chairman & CEO








                                                                      Exhibit A

                AMENDED AND RESTATED CERTIFICATE OF INCORPORATION
                                       OF
                                 CABLE COM, INC.

                                    ARTICLE I
                                      Name

                  The name of the corporation is Cable Com, Inc. (the
"Corporation").


                                   ARTICLE II
                     Registered Office and Registered Agent

                  The address of the initial registered office of the
Corporation in the State of Delaware is the Corporation Trust Company, 1209
Orange Street, in the City of Wilmington, County of New Castle. The name of the
registered agent of the Corporation at such address is The Corporation Trust
Company.



                                   ARTICLE III
                                Corporate Purpose

                  The purpose of the Corporation is to engage in any lawful act
or activity for which corporations may be organized under the General
Corporation Law of the State of Delaware (the "General Corporation Law").


                                   ARTICLE IV
                                  Capital Stock

                  The aggregate number of shares of all classes of stock that
the Corporation shall have authority to issue is 1,000, all of which shall be
shares of Common Stock, par value $.01 per share.


                                    ARTICLE V
                                    Directors

                  To the fullest extent permitted by the General Corporation Law
as it now exists and as it may hereafter be amended, no director of the
Corporation shall be personally liable to




the Corporation or its stockholders for monetary damages for breach of fiduciary
duty as a director.


                                   ARTICLE VI
                                     By-Laws

                  The directors of the Corporation shall have the power to
adopt, amend or repeal By-Laws.


                                   ARTICLE VII
                Indemnification of Directors, Officers and Others

                  (1) The Corporation shall indemnify any person who was or is a
party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding, whether civil, criminal, administrative or
investigative (other than an action by or in the right of the Corporation) by
reason of the fact that he is or was a director, officer, employee or agent of
the Corporation, or is or was serving at the request of the Corporation as a
director, officer, employee or agent of another corporation, partnership, joint
venture, trust or other enterprise, against expenses (including attorneys'
fees), judgments, fines and amounts paid in settlement actually and reasonably
incurred by him in connection with such action, suit




or proceeding if he acted in good faith and in a manner he reasonably believed
to be in, or not opposed to, the best interests of the Corporation, and, with
respect to any criminal action or proceeding, had no reasonable cause to believe
his conduct was unlawful. The termination of any action, suit or proceeding by
judgment, order, settlement, conviction, or upon a plea of nolo contendere or
its equivalent, shall not, of itself, create a presumption that the person
seeking indemnification did not act in good faith and in a manner which he
reasonably believed to be in or not opposed to the best interests of the
Corporation, and, with respect to any criminal action or proceeding, had
reasonable cause to believe that his conduct was unlawful.

                  (2) The Corporation shall indemnify any person who was or is a
party or is threatened to be made a party to any threatened, pending or
completed action or suit by or in the right of the Corporation to procure a
judgment in its favor by reason of the fact that he is or was a director,
officer, employee or agent of the Corporation, or is or was serving at the
request of the Corporation as a director, officer, employee or agent of another
corporation, partnership, joint venture, trust or other enterprise against
expenses (including attorneys' fees) actually and reasonably incurred by him in
connection with the defense or settlement of such action or suit if he acted in
good faith and in a manner he reasonably believed to be in or not opposed to the
best interests of the Corporation and except that no indemnification shall be
made in respect of any claim, issue or matter as to which such person shall have
been adjudged to be liable to the Corporation unless and only to the extent that
the Court of Chancery of the State of Delaware or the court in which such action
or suit was brought shall determine upon application that, despite the
adjudication of liability but in view of all the circumstances of the




case, such person is fairly and reasonably entitled to indemnity for such
expenses which the Court of Chancery or such other court shall deem proper.

                  (3) To the extent that a director, officer, employee or agent
of the Corporation has been successful on the merits or otherwise in defense of
any action, suit or proceeding referred to in Sections (1) and (2) of this
Article VII, or in defense of any claim, issue or matter therein, he shall be
indemnified against expenses (including attorneys' fees) actually and reasonably
incurred by him in connection therewith.

                  (4) Any indemnification under Sections (1) and (2) of this
Article VII (unless ordered by a court) shall be made by the Corporation only as
authorized in the specific case upon a determination that indemnification of the
director, officer, employee or agent is proper in the circumstances because he
has met the applicable standard of conduct set forth in such Sections (1) and
(2). Such determination shall be made (a) by the Board of Directors of the
Corporation by a majority vote of a quorum consisting of directors who were not
parties to such action, suit or proceeding, or (b) if such a quorum is not
obtainable, or, even if obtainable, a quorum of disinterested directors so
directs, by independent legal counsel in a written opinion, or (c) by the
stockholders of the Corporation.

                  (5) Expenses (including attorneys' fees) incurred by an
officer or director in defending any civil, criminal, administrative or
investigative action, suit or proceeding may be paid by the Corporation in
advance of the final disposition of such action, suit or proceeding




upon receipt of an undertaking by or on behalf of such director or officer to
repay such amount if it shall ultimately be determined that he is not entitled
to be indemnified by the Corporation authorized in this Article VII. Such
expenses (including attorneys' fees) incurred by other employees and agents may
be so paid upon such terms and conditions, if any, as the Board of Directors of
the Corporation deems appropriate.

                  (6) The indemnification and advancement of expenses provided
by, or granted pursuant to, the other sections of this Article VII shall not be
deemed exclusive of any other rights to which those seeking indemnification or
advancement of expenses may be entitled under any law, by-law, agreement, vote
of stockholders or disinterested directors or otherwise, both as to action in an
official capacity and as to action in another capacity while holding such
office.

                  (7) The Corporation may purchase and maintain insurance on
behalf of any person who is or was a director, officer, employee or agent of the
Corporation, or is or was serving at the request of the Corporation as a
director, officer, employee or agent of another corporation, partnership, joint
venture, trust or other enterprise against any liability asserted against him
and incurred by him in any such capacity, or arising out of his status as such,
whether or not the Corporation would have the power to indemnify him against
such liability under the provisions of Section 145 of the General Corporation
Law.




                  (8) For purposes of this Article VII, references to "the
Corporation" shall include, in addition to the resulting corporation, any
constituent corporation (including any constituent of a constituent) absorbed in
a consolidation or merger which, if its separate existence had continued, would
have had power and authority to indemnify its directors, officers, employees or
agents so that any person who is or was a director, officer, employee or agent
of such constituent corporation, or is or was serving at the request of such
constituent corporation as a director, officer, employee or agent of another
corporation, partnership, joint venture, trust or other enterprise, shall stand
in the same position under the provisions of this Article VII with respect to
the resulting or surviving corporation as he would have with respect to such
constituent corporation if its separate existence had continued.

                  (9) For purposes of this Article VII, references to "other
enterprises" shall include employee benefit plans; references to "fines" shall
include any excise taxes assessed on a person with respect to an employee
benefit plan; and references to "serving at the request of the Corporation"
shall include any service as a director, officer, employee or agent of the
Corporation which imposes duties on, or involves service by, such director,
officer, employee or agent with respect to any employee benefit plan, its
participants or beneficiaries; and a person who acted in good faith and in a
manner he reasonably believed to be in the interest of the participants and
beneficiaries of an employee benefit plan shall be deemed to have acted in a
manner "not opposed to the best interests of the Corporation" as referred to in
this Article VII.




                  (10) The indemnification and advancement of expenses provided
by, or granted pursuant to, this Article VII shall, unless otherwise provided
when authorized or ratified, continue as to a person who has ceased to be a
director, officer, employee or agent and shall inure to the benefit of the
heirs, executors and administrators of such a person.


                                  ARTICLE VIII
                                    Amendment

                  The Corporation reserves the right to amend, alter, change or
repeal any provision of this Certificate of Incorporation, in the manner now or
hereafter prescribed by law, and all rights conferred on stockholders in this
Certificate of Incorporation are subject to this reservation.